sklearn.datasets.make_moons

from sklearn.datasets import make_moons

 

 

X,y=make_moons(noise=0.1)
plt.scatter(X[:,0],X[:,1],c=y)

np.bincount(dbscan.labels_+1) # +1을 해줘야함!

# array([ 8, 25, 23, 17, 27], dtype=int64)